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Our Philosophy: Do it once, do it right, with honest straightforward service.

You have a lot of choices when it comes to getting your vehicle serviced in Sonoma and Marin Counties, California. We get it. A lot of new clients tell us they came to Sonoma AutoTrans for one reason, they felt their business wasn't valued at other shops. Ever had that experience? To us, that's just bad business. Our goal is to be your go-to shop. We want to get—and keep—your business and referrals. For that to happen, you need to trust us to be straight. You need to be able to ask "What's the problem with my car, what's the estimate on how to fix it, and call me if anything changes." We believe in Simple, Excellent Customer Service. Our dependability is the key to building a long term relationship with you—our Number 1 priority.


Service & Repair

Auto Repair

Oil Change

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Specialized Services

If you have your Check Engine Light on, give us a call to set an appointment for a Free Engine Diagnostic. This is a Complimentary Service that often has a fee from other shops. Although we specialize in Rebuilding Transmissions, that's not all we do at Sonoma AutoTrans. We're a General Repair Shop, which means we can take care of your brakes as well as your regular maintenance services.